Frontiers in Ceramics最新文献

{"title":"Grand challenges in ceramics processing","authors":"V. Sglavo","doi":"10.3389/fceic.2023.1136720","DOIUrl":"https://doi.org/10.3389/fceic.2023.1136720","url":null,"abstract":"How important are ceramic materials in today’s world? Certainly, very! Every sector of technology, science and common life would not be what it is without the presence of ceramics. Probably, this depends on the very meaning of ceramic; for example, according to the definition proposed by ASTM International (ASTM C1145-19, 2019), an advanced ceramic material is a highly engineered, high performance, predominately non-metallic and inorganic, material having specific functional attributes. But if we think about it, this implies that everything that is not a metal or a polymer is a ceramic material! From aeronautics to space applications, from advanced mechanics to sensors, from automotive to energy systems, from medicine to electronics, from telecommunications to safety devices, from kitchenware to constructions, from optics to nuclear power, ceramic materials are everywhere (Carter and Norton, 2013). About 25,000 years ago our ancestors had learned to produce ceramic manufacts starting from very fine powders collected from specific clayey sediments (Vandiver et al., 1989); these, suitably mixed with water, could shape objects which, once heated to relatively high temperature, turned out to be very hard, almost like stones. Therefore, the basics of ceramic processing (i.e., powders, slurries or pastes, firing) have been known since ancient times. However, the development of innumerable applications in diverse sectors, especially in the last century, has prompted the development of process technologies obtaining ceramic materials with specific shapes, dimensions and functions requirements, all while keeping an attentive eye on the use of resources, above all, energy.","PeriodicalId":338980,"journal":{"name":"Frontiers in Ceramics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128861689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"“Frontiers in ceramics” grand challenges","authors":"P. Xiao","doi":"10.3389/fceic.2023.1137377","DOIUrl":"https://doi.org/10.3389/fceic.2023.1137377","url":null,"abstract":"Ceramics are classified as inorganic and non-metallic materials that are essential to our daily lifestyle and have a long history of development. Archeologists have uncovered human-made ceramics that date back to at least 24,000 BC. Clay minerals of alumina-silicates remain the most widely used raw materials for producing traditional ceramic products (Carter, 2013). The ceramic products from clay includes earthenware, porcelain and bricks which have also been in use in our daily life for a long time. Development of advanced ceramics has led to production of ceramic matrix composites, ceramic coatings, electro-ceramics, bioceramics and optical glass fibres, etc. Nowadays ceramics are found in products like watches, snow skies, automobiles and phone lines. Depending on their method of formation, ceramics can be dense or/and lightweight. Typically, ceramics demonstrate excellent strength and hardness properties, being stable and chemically inert in corrosive environments (Carter, 2013). Various mechanical, chemical, electrical, magnetic, optical and thermal properties can be obtained using various ceramics, which would be difficult with other materials. However, ceramics are often brittle in nature. It is more difficult to manufacture ceramic components than is the case with metals and polymers. In addition, a wide range of ceramics have been investigated for industrial applications, and different processing techniques have developed to manufacture ceramics (Carter, 2013). Therefore, multi-disciplinary investigation is required for study of ceramic materials and it is difficult for a single scientific journal to cover all ceramic research topics. Thus, a new journal “Frontiers inCeramics”has been launchedwith intent to cover four sections initially:Ceramic Processing,Ceramic Structure-property Relationship, Ceramic Applicationswith focus on functional ceramics, and Ceramic Technology to cover coating technology, nanotechnology, and traditional ceramics in additional to advanced ceramics. Both chemical and physical methods have been used to produce ceramic powders. Ceramic powders can be transformed into green ceramics of different shapes via ceramic forming techniques, followed by sintering of green ceramics into consolidated ceramics (Reed, 1995). On the other hand, different ceramic processing techniques have been and are being developed to produce ceramics which are difficult or expensive to produce via the powder forming and sintering route. Ceramic processing routes are much wider than those used tomanufacture metallic and polymer products, although some ceramic forming techniques are similar to those employed for manufacture of metal and polymer components, e.g., casting and extrusion. Overall, it is difficult to summarise all ceramic processing techniques, as they are wide range, evolving and progressing continuously. Ceramic structure controls properties including mechanical, electrical, thermal and optical properties (Lee and Rainforth, 199","PeriodicalId":338980,"journal":{"name":"Frontiers in Ceramics","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123045636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}